US20020029493A1 - Shoe with inflatable bladder and secure deflation valve - Google Patents

Shoe with inflatable bladder and secure deflation valve Download PDF

Info

Publication number
US20020029493A1
US20020029493A1 US09/738,947 US73894700A US2002029493A1 US 20020029493 A1 US20020029493 A1 US 20020029493A1 US 73894700 A US73894700 A US 73894700A US 2002029493 A1 US2002029493 A1 US 2002029493A1
Authority
US
United States
Prior art keywords
plunger
valve
upper
bladder
bore
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
US09/738,947
Other versions
US6409487B1 (en
Inventor
Jai Baek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DC Shoes Inc
Original Assignee
DC Shoes Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US09/660,265 priority Critical patent/US6409486B1/en
Application filed by DC Shoes Inc filed Critical DC Shoes Inc
Priority to US09/738,947 priority patent/US6409487B1/en
Assigned to DC SHOES, INC. reassignment DC SHOES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BAEK, JAI K.
Publication of US20020029493A1 publication Critical patent/US20020029493A1/en
Application granted granted Critical
Publication of US6409487B1 publication Critical patent/US6409487B1/en
Assigned to RHONE GROUP L.L.C. reassignment RHONE GROUP L.L.C. SECURITY AGREEMENT Assignors: DC SHOES, INC., MERVIN MANUFACTURING, INC., QUIKSILVER AMERICAS, INC., QUIKSILVER, INC.
Assigned to BANK OF AMERICA, N.A. reassignment BANK OF AMERICA, N.A. SECURITY AGREEMENT Assignors: DC SHOES, INC., HAWK DESIGNS, INC., MERVIN MANUFACTURING, INC., QS RETAIL, INC., QS WHOLESALE, INC., QUIKSILVER AMERICAS, INC., QUIKSILVER, INC.
Assigned to QUIKSILVER, INC., QUIKSILVER AMERICAS, INC., MERVIN MANUFACTURING, INC., DC SHOES, INC. reassignment QUIKSILVER, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: RHONE GROUP, L.L.C.
Assigned to BANK OF AMERICA, N.A., COLLATERAL AGENT reassignment BANK OF AMERICA, N.A., COLLATERAL AGENT SECURITY AGREEMENT Assignors: DC SHOES, INC., MERVIN MANUFACTURING, INC., QUIKSILVER AMERICAS, INC., QUIKSILVER, INC.
Assigned to WELLS FARGO BANK, N.A., AS COLLATERAL AGENT reassignment WELLS FARGO BANK, N.A., AS COLLATERAL AGENT SECURITY AGREEMENT Assignors: DC SHOES, INC., HAWK DESIGNS, INC., MERVIN MANUFACTURING, INC., QS RETAIL, INC., QS WHOLESALE, INC., QUIKSILVER, INC.
Assigned to QUIKSILVER, INC., DC SHOES, INC., QS WHOLESALE, INC., MERVIN MANUFACTURING, INC. reassignment QUIKSILVER, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Assigned to BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT reassignment BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT SECURITY AGREEMENT Assignors: DC SHOES, INC., QS RETAIL, INC., QS WHOLESALE, INC., QUIKSILVER, INC.
Assigned to QUIKSILVER, INC., DC SHOES, INC., HAWK DESIGNS, INC., QS RETAIL, INC., QS WHOLESALE, INC. reassignment QUIKSILVER, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: DELAWARE TRUST COMPANY (SUCCESSOR TO WELLS FARGO BANK, NATIONAL ASSOCIATION)
Assigned to OCM FIE, LLC reassignment OCM FIE, LLC SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DC SHOES, INC., QS RETAIL, INC., QS WHOLESALE, INC., QUIKSILVER, INC.
Assigned to WILMINGTON TRUST, NATIONAL ASSOCIATION reassignment WILMINGTON TRUST, NATIONAL ASSOCIATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DC SHOES, INC., QS RETAIL, INC., QS WHOLESALE, INC., QUIKSILVER, INC.
Assigned to DC SHOES, INC., BOARDRIDERS, INC. reassignment DC SHOES, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: OCM FIE LLC
Assigned to DC SHOES, INC., BOARDRIDERS, INC. reassignment DC SHOES, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: WILMINGTON TRUST, NATIONAL ASSOCIATION
Assigned to DEUTSCHE BANK AG NEW YORK BRANCH, AS COLLATERAL AGENT reassignment DEUTSCHE BANK AG NEW YORK BRANCH, AS COLLATERAL AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DC SHOES, INC.
Assigned to BANK OF AMERICA, N.A., AS COLLATERAL AGENT reassignment BANK OF AMERICA, N.A., AS COLLATERAL AGENT PATENT SECURITY AGREEMENT Assignors: BOARDRIDERS IP HOLDINGS, LLC, DC SHOES, INC.
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00Soles; Sole and heel units
    • A43B13/14Soles; Sole and heel units characterised by the constructive form
    • A43B13/18Resilient soles
    • A43B13/20Pneumatic soles filled with a compressible fluid, e.g. air, gas
    • A43B13/206Pneumatic soles filled with a compressible fluid, e.g. air, gas provided with tubes or pipes or tubular shaped cushioning members
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00Soles; Sole and heel units
    • A43B13/14Soles; Sole and heel units characterised by the constructive form
    • A43B13/18Resilient soles
    • A43B13/20Pneumatic soles filled with a compressible fluid, e.g. air, gas
    • A43B13/203Pneumatic soles filled with a compressible fluid, e.g. air, gas provided with a pump or valve
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/02Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient
    • A43B17/03Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient filled with a gas, e.g. air
    • A43B17/035Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient filled with a gas, e.g. air provided with a pump or valve
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B21/00Heels; Top-pieces, e.g. high heels, heel distinct from the sole, high heels monolithic with the sole
    • A43B21/24Heels; Top-pieces, e.g. high heels, heel distinct from the sole, high heels monolithic with the sole characterised by the constructive form
    • A43B21/26Resilient heels
    • A43B21/28Pneumatic heels filled with a compressible fluid, e.g. air, gas
    • A43B21/285Pneumatic heels filled with a compressible fluid, e.g. air, gas provided with a pump or valve
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00Footwear for sporting purposes
    • A43B5/04Ski boots; Similar boots
    • A43B5/0405Linings, paddings, insertions; Inner boots
    • A43B5/0407Linings, paddings, insertions; Inner boots inflatable
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/20Check valves specially designed for inflatable bodies, e.g. tyres
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K25/00Details relating to contact between valve members and seat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K35/00Means to prevent accidental or unauthorised actuation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S251/00Valves and valve actuation
    • Y10S251/90Valves with o-rings

Abstract

An inflatable shoe with a deflation valve designed to limit inadvertent operation of the valve and thereby limit inadvertent deflation of the shoe. The deflation valve has a shortened plunger, a collar to prevent tilt of the plunger, and a conformable ring on the valve face. The plunger is provided with a groove sized and dimensioned to partially receive the inner surface of the ring.

Description

  • This application is a continuation-in-part application of co-pending U.S. application Ser. No. 09/660,265 filed Sep. 12, 2000.[0001]
  • FIELD OF THE INVENTIONS
  • The inventions described below relate to the field of valves, and more specifically to valves suitable for use with inflatable garments such as shoes and boots. [0002]
  • BACKGROUND OF THE INVENTIONS
  • A number of shoes and boots may be improved with the use of air bladders placed within the shoe or boot. The air bladders are preferably selectively inflatable and deflatable, so that a wearer can adjust the fit of the shoe. The pump device is popular with basketball shoes, ski boots, and snowboard boots. Lakic, Miniature Universal Pump And Valve For Inflatable Liners, U.S. Pat. No. 5,846,063 (Dec. 8, 1998) illustrates a number of embodiments of such inflatable garments, and a number of emdodiments for various components of the devices. [0003]
  • The inflatable shoes use a bladder pump for inflation, and a simple finger operated plunge valve to deflate the inflatable bladder. The plunge valve is operated merely by pushing a small plunger or valve stem inwardly toward the boot. Both the bladder pump and the plunge valve are placed on the surface of the shoe, and are easily accessible to the wearer. However, where the shoe is used in a rough activity, such as skiing or snowboarding, contact between the shoe and the ground, or the skis or snowboard, can inadvertently depress the plunger, and thereby operate the deflation valve. Thus, having once inflated the bladder to obtain optimum fit of the shoe, the shoe is likely to deflate during a ski run or snowboard run, when proper fit is most important. [0004]
  • SUMMARY
  • The devices described below provide a secure deflation valve for a shoe or boot. The deflation valve is less subject to inadvertent deflation caused by the rough and tumble of the activity for which the shoe is worn. The deflation valve includes a non-conformable valve housing, which cannot be deformed relative to the plunger of the valve. The valve body also has a closely fitting port through which the plunger exits the valve, thereby limiting the potential tilt of the plunger relative to the valve body and valve seat. Additionally, the plunger is much shorter than prior plungers, and the valve face is provided with a soft silicon sealing ring (like an O-ring) which conforms to the space between the valve face and valve seat during any tilting movement of the valve face and valve seat. [0005]
  • While developed for use with snowboard shoes and ski boots, the valve may be used for any selectively inflatable bladder where it is desired to provide a more secure deflation valve that is not subject to inadvertent operation during use of the bladder.[0006]
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a view of the device in one intended use, namely a sport shoe with an inflatable bladder. [0007]
  • FIG. 2 is an elevational view of the valve shown in its housing, which is integral with the bladder pump. [0008]
  • FIG. 3 is a cross-section of a prior art valve. [0009]
  • FIG. 4 is a cross section of a new deflation valve which minimizes chance of inadvertent unseating of the valve during use of the shoe. [0010]
  • FIG. 5 is a cross section of the deflation valve with improvements to the valve stem.[0011]
  • DETAILED DESCRIPTION OF THE INVENTIONS
  • FIG. 1 is a view of the device in a sport shoe with an inflatable bladder. The shoe [0012] 1 may be any type of shoe, such as a ski boot, snowboard boot, or basketball shoe. The shoe has a bladder 2, which is located in the shoe in positions dependant on the use of the shoe. For example, the bladder may be located on the tongue of shoe, on the uppers, the sole, or around the heel. The pump 3 and the deflation valve 4 are located in any convenient place on the shoe or boot, and they are shown here located in the upper, high on the lateral side of the shoe. To operate the pump, the wearer repeatedly squeezes the pump until the desired degree of inflation is achieved. To deflate the bladder, the operator pushes the plunger on the deflation valve.
  • FIG. 2 is an elevational view of the valve shown in its housing, which is integral with the bladder pump. The bladder pump [0013] 3 simply comprises a bulb 5, an inlet port 6 which takes suction on the surrounding air or other fluid (and includes a check valve so that fluid once sucked into the bulb cannot exit this port), and an outlet port 7 (the outlet port also includes a check valve so that air once forced out of bulb and into the shoe bladder cannot bleed out of the shoe bladder and into the bulb). The outlet port communicates with the T-junction 8. The T-junction connects the bladder supply port 9, the pump outlet, and the deflation valve. The deflation valve 4 has an input port in immediate fluid communication with the bladder supply port through the T-junction, and an output port through the opening on the top of the valve (more fully shown in FIG. 4.)
  • When operated by the user, the deflation valve allows air from the bladder to exhaust to the atmosphere. The deflation valve is operated by depressing the plunger [0014] 10, and holding the plunger down until the air in the bladder has exhausted through the valve. The pump and deflation valve assembly are mounted on the shoe, as shown in FIG. 1. As can be appreciated from these drawings, the plunger 10 is susceptible to inadvertent operation since it requires only minor force to operate, and the valve is located such that it is subject to depression during inadvertent contact with objects, the ground and ground debris, and the operator and equipment carried by the operator.
  • FIG. 3 is a cross-section of a prior art pump and valve assembly. As in FIG. 2, the assembly comprises the bulb [0015] 5, pump inlet port 6, pump outlet port 7, T-junction 8, and bladder supply port 9. The deflation valve of the prior art, as illustrated in FIG. 3, uses a plunger 11 which additionally comprises a plunger disk 12, valve stem 13, a valve face in the form of ball 14, all within the valve body 15. The upper surface of the valve face is matched to the valve seat 16, formed on the lower surface of inner flange 17 which protrudes inwardly into the valve body. The valve spring 18 biases the plunger upward, forcing the valve face into contact with the valve seat with enough force to create an airtight seal. The valve body and flange are typically made of silicon or other soft elastic material.
  • FIG. 4 is a cross section of a new deflation valve which minimizes the chance of inadvertent unseating of the valve during use of the shoe. As in FIG. 2, the assembly comprises the bulb [0016] 5, pump inlet port (not shown), pump outlet port 7, T-junction 8, and bladder supply port 9. The deflation valve 4 comprises a two part valve body, with a lower valve body 23 made of a hard plastic, and an upper valve body 24 made of similar hard plastic or other relatively stiff and non-conformable material. The upper valve body is force fit into the lower valve body and glued in place. The upper valve body additionally comprises an inwardly protruding flange 25, located at or near the upper end of the valve body. The valve seat 26 is located on the lower surface of this flange. The plunger 27 is relatively short, and does not need a plunger disk on its upper extremity. At the upper end of the plunger, the plunger outer diameter is closely matched to the inner diameter or bore of the flange 25, with clearance to allow upward and downward movement, but closely matched to limit tilting and sideways movement. At the bottom of the plunger, a disk 28 provides a valve face 29 on the upper surface of the disk and a bottom surface 30 upon which biasing spring 31 may act. The plunger may include a lower extension 32 with a diameter smaller than the disk, closely matching the inner diameter of the biasing spring 31, which will serve to keep the spring and disk in vertical alignment and proper registration. The biasing spring is located below the plunger, and acts on the lower surface of the disk to force the plunger upwardly. The biasing spring rests on a surface provided by a flange or lower inner surface of the lower valve body. The plunger is preferably made of metal or hard plastic, and may generally be described as having a cylindrical upper segment of a first, small diameter, a middle segment of conical or frustoconical shape having a maximum outer diameter approximating the outer diameter of the spring (but in any case not substantially smaller than the outer diameter of the spring) and a lower segment having a diameter approximating the inner diameter of the spring. A soft, deformable ring 33 is placed on the plunger, above the disk 28, to enhance the sealing capability of the valve. The deformable ring may be fixed to the upper conical surface of the plunger mid-section or it may be fixed to the lower surface of flange 25, or it may merely be placed between the plunger and the flange. This ring is made of silicon rubber or similar soft, compliant material. This is particularly useful in case of any tilting of the plunger. The valve is covered by a rubber condom or housing 34, and can be operated by the operator through the rubber condom.
  • To operate the valve, the wearer merely pushes downwardly on the plunger [0017] 27. The close fit of the flange 25 around the plunger permits upward and downward movement, but inhibits sideways or tilting movement of the plunger which would otherwise permit deflation. Since the spring is located below the plunger, and the valve seat is at the top of the valve, the plunger does not need to be long enough to pass all the way through the spring, thereby limiting the possible extent of tilting of the plunger. Also, because the valve body is made of hard plastic, deformation of the top of the valve body relative to the bottom of the valve body is not possible with the expected forces applied during snowboarding, skiing and other rough activities.
  • FIG. 5 is a cross section of the deflation valve with improvements to the valve stem that ensure that the ring moves downwardly with the plunger during operation. The valve includes the parts described in relation to FIG. 4, including the lower valve body [0018] 23 and the upper valve body 24, the valve body flange 25 and the matching valve seat 26, the plunger 27, the disk 28 with its valve face 29 and bottom surface 30, the spring 31 and the lower extension 32 of the valve stem, and the deformable ring 33. The plunger has been modified vis-a-vis the plunger of FIG. 4 with the provision of an annular groove 40 circumscribing the upper segment of the plunger, near the junction of the upper segment 41 of the plunger to the disk 28. The dimensions of the annular groove are chosen to match the ring 33, such that the ring protrudes into the groove to an extent that provides some engagement between the upper segment and the ring, and downward movement of the upper segment and plunger exerts a downward force on the ring. The groove depth may be such that the resulting diameter 42 of the grooved segment of the plunger is slightly larger than the inner diameter of the ring, or it may be such that the resulting diameter is exactly equal to the inner diameter of the ring, or it may be such the resulting diameter is smaller than the inner diameter of the ring and the engagement between the plunger and the ring is loose in the horizontal plane established by the groove. The longitudinal extent 43 of the groove may likewise be variable, from heights which are smaller than the height of the ring, exactly matching the ring, or substantially larger than the ring, so long as inward or downward movement of the plunger will result in impingement of the groove upper surface on some portion of the ring during some portion of the inward or vertical throw of the plunger. (It should be noted that, in the above description, the terms vertical and upward are used in reference to the valve when positioned as shown, and they may have no relationship to the vertical and horizontal as the valve is fitted onto any particular boot.)
  • The devices described above have been described in the context of sport shoes using inflatable bladders. However, the deflation valve may be used with other selectively inflatable devices, such as sport helmets, water flotation aids, in medical devices such as dissection balloons, and in any other application where enhanced reliability and control over deflation of a selectively inflatable bladder is desired. Thus, while the preferred embodiments of the devices and methods have been described in reference to the environment in which they were developed, they are merely illustrative of the principles of the inventions. Other embodiments and configurations may be devised without departing from the spirit of the inventions and the scope of the appended claims. [0019]

Claims (4)

We claim:
1. A pump and deflation valve assembly for use with a fluid bladder, said assembly comprising:
a bladder pump having an inlet port and an outlet port, said outlet port aligned to discharge fluid into the bladder;
a deflation valve having an input port in fluid communication with the bladder and an output port;
said deflation valve comprising:
a valve body comprised on a non-conformable material, said valve body having a bore extending therethrough, from the inlet port to the outlet port; an inwardly extending flange, said flange characterized by a bottom surface, a top surface, and a bore extending from the bottom surface to the top surface, said bottom surface serving as a valve seat;
a plunger extending through the bore, said plunger having an upper segment of small diameter making it capable of moving through the bore of the upper inwardly extending flange, said upper segment having an annular groove thereon, said plunger having a lower segment of larger diameter such that is cannot pass through the bore of the upper inwardly extending flange, said lower segment of the plunger having an upper surface positioned in apposition to the bottom surface of the upper inwardly extending flange and a lower surface; and
a ring comprising a conformable material disposed between the plunger lower segment and the upper inwardly extending flange, said ring having an inner diameter slightly smaller than the diameter of the upper segment.
2. The device of claim 1 wherein the ring is disposed partially within the groove of the upper segment.
3. A shoe comprising:
at least one inflatable bladder disposed within the shoe;
a bladder pump in fluid communication with the bladder, said bladder pump having an inlet port and an outlet port, said outlet port aligned to discharge fluid into the bladder;
a deflation valve having an input port in fluid communication with the bladder and an output port;
said deflation valve comprising:
a valve body comprised of a non-conformable material, said valve body having a bore extending therethrough, from the inlet port to the outlet port, an inwardly extending flange, said flange characterized by a bottom surface, a top surface, and a bore extending from the bottom surface to the top surface, said bottom surface serving as a valve seat;
a plunger extending through the bore, said plunger having an upper segment of small diameter making it capable of moving through the bore of the upper inwardly extending flange, said upper segment having an annular groove thereon, said plunger having a lower segment of larger diameter such that is cannot pass through the bore of the upper inwardly extending flange, said lower segment of the plunger having an upper surface positioned in apposition to the bottom surface of the upper inwardly extending flange and a lower surface; and
a ring comprising a conformable material disposed between the plunger lower segment and the upper inwardly extending flange, said ring having an inner diameter slightly smaller than the diameter of the upper segment.
4. The device of claim 3 wherein the ring is disposed partially within the groove of the upper segment.
US09/738,947 2000-09-12 2000-12-15 Shoe with inflatable bladder and secure deflation valve Active US6409487B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US09/660,265 US6409486B1 (en) 2000-09-12 2000-09-12 Shoe with inflatable bladder and secure deflation valve
US09/738,947 US6409487B1 (en) 2000-09-12 2000-12-15 Shoe with inflatable bladder and secure deflation valve

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
US09/738,947 US6409487B1 (en) 2000-09-12 2000-12-15 Shoe with inflatable bladder and secure deflation valve
DE2001627625 DE60127625T2 (en) 2000-09-12 2001-09-10 Safety valve for releasing air
EP20010121555 EP1186250B1 (en) 2000-09-12 2001-09-10 Secure deflation valve
AT01121555T AT358425T (en) 2000-09-12 2001-09-10 Safety valve for air Drain
CA 2357144 CA2357144C (en) 2000-09-12 2001-09-11 Shoe with inflatable bladder and secure deflation valve
JP2001276895A JP2002136304A (en) 2000-09-12 2001-09-12 Inflatable shoe provided with inner bag and safety deflation valve
CN 01142113 CN1230106C (en) 2000-09-12 2001-09-12 Pump, air escape valve assembly and shoes having said assembly
TW90122707A TW557204B (en) 2000-09-12 2001-09-12 Shoe with inflatable bladder and secure deflation valve
US10/180,425 US6638038B2 (en) 2000-09-12 2002-06-25 Shoe with inflatable bladder and secure deflation valve
US10/695,300 US7001160B2 (en) 2000-09-12 2003-10-27 Shoe with inflatable bladder and secure deflation valve

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US09/660,265 Continuation-In-Part US6409486B1 (en) 2000-09-12 2000-09-12 Shoe with inflatable bladder and secure deflation valve

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/180,425 Continuation US6638038B2 (en) 2000-09-12 2002-06-25 Shoe with inflatable bladder and secure deflation valve

Publications (2)

Publication Number Publication Date
US20020029493A1 true US20020029493A1 (en) 2002-03-14
US6409487B1 US6409487B1 (en) 2002-06-25

Family

ID=27098036

Family Applications (3)

Application Number Title Priority Date Filing Date
US09/738,947 Active US6409487B1 (en) 2000-09-12 2000-12-15 Shoe with inflatable bladder and secure deflation valve
US10/180,425 Expired - Fee Related US6638038B2 (en) 2000-09-12 2002-06-25 Shoe with inflatable bladder and secure deflation valve
US10/695,300 Expired - Fee Related US7001160B2 (en) 2000-09-12 2003-10-27 Shoe with inflatable bladder and secure deflation valve

Family Applications After (2)

Application Number Title Priority Date Filing Date
US10/180,425 Expired - Fee Related US6638038B2 (en) 2000-09-12 2002-06-25 Shoe with inflatable bladder and secure deflation valve
US10/695,300 Expired - Fee Related US7001160B2 (en) 2000-09-12 2003-10-27 Shoe with inflatable bladder and secure deflation valve

Country Status (8)

Country Link
US (3) US6409487B1 (en)
EP (1) EP1186250B1 (en)
JP (1) JP2002136304A (en)
CN (1) CN1230106C (en)
AT (1) AT358425T (en)
CA (1) CA2357144C (en)
DE (1) DE60127625T2 (en)
TW (1) TW557204B (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070105492A1 (en) * 2005-11-10 2007-05-10 Kerfoot William B Directional spargewell system
US20080011688A1 (en) * 2006-07-12 2008-01-17 Kerfoot William B Directional microporous diffuser and directional sparging
US20080011474A1 (en) * 2006-07-12 2008-01-17 Kerfoot William B Directional microporous diffuser and directional sparging
US20080047905A1 (en) * 1999-12-22 2008-02-28 Kerfoot William B Coated Microbubbles for Treating an Aquifer or Soil Formations
US20080290043A1 (en) * 2003-12-24 2008-11-27 Kerfoot William B Directional Microporous Diffuser and Directional Sparging
US20090039016A1 (en) * 2003-08-27 2009-02-12 Kerfoot William B Environmental Remediation Method
US20090272697A1 (en) * 2004-07-20 2009-11-05 Kerfoot William B Superoxidant Poiser For Groundwater And Soil Treatment With In-Situ Oxidation-Reduction And Acidity-Basicity Adjustment
US7645380B2 (en) 1995-05-05 2010-01-12 Thinkvillage-Kerfoot, Llc Microporous diffusion apparatus
US7661657B2 (en) 2003-02-12 2010-02-16 Thinkvillage-Kerfoot, Llc Deep well sparging
US7666316B2 (en) 2004-07-20 2010-02-23 Thinkvillage-Kerfoot, Llc Permanganate-coated ozone for groundwater and soil treatment with in-situ oxidation
US7666313B2 (en) 2000-07-06 2010-02-23 Thinkvillage-Kerfoot, Llc Groundwater and subsurface remediation
US20100078372A1 (en) * 2003-02-12 2010-04-01 Kerfoot William B Soil And Water Remediation System And Method
US20100116725A1 (en) * 2000-07-06 2010-05-13 Kerfoot William B Groundwater And Subsurface Remediation
US20110044886A1 (en) * 2006-04-11 2011-02-24 Vadim Gorshkov Lithium-based materials and methods of forming the same
USRE43350E1 (en) 1995-05-05 2012-05-08 Think Village-Kerfoot, Llc Microporous diffusion apparatus
US8771507B2 (en) 2003-12-24 2014-07-08 Thinkvillage-Kerfoot, Llc Directional microporous diffuser and directional sparging
US9687045B2 (en) * 2015-02-27 2017-06-27 Reebok International Limited Article of footwear having an upper with inflation system
US9694401B2 (en) 2013-03-04 2017-07-04 Kerfoot Technologies, Inc. Method and apparatus for treating perfluoroalkyl compounds

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6409487B1 (en) * 2000-09-12 2002-06-25 Dc Shoes, Inc. Shoe with inflatable bladder and secure deflation valve
US7220387B2 (en) * 2002-07-23 2007-05-22 Apieron Biosystems Corp. Disposable sensor for use in measuring an analyte in a gaseous sample
US6936130B2 (en) 2002-09-19 2005-08-30 Nike, Inc. Valves and methods for manufacturing the valves
US6997667B2 (en) * 2002-11-13 2006-02-14 Skid Mor Development Llc Material handling apparatus and method for operating
US20050106050A1 (en) * 2003-11-14 2005-05-19 Christian Hunt Hand pump with pressure release mechanism and system of use
US7546696B1 (en) * 2005-10-17 2009-06-16 Reebok International Ltd. Inflation mechanism and outlet valve for an article of footwear incorporating an inflatable bladder
US8250782B2 (en) * 2009-03-26 2012-08-28 Reebok International Limited Valve for regulating pressure in a fluid system
CN102427744A (en) * 2009-05-15 2012-04-25 金根绪 Shoe having an active ventilation mechanism
US8857076B2 (en) 2011-04-06 2014-10-14 Nike, Inc. Article of footwear with an adaptive fluid system
US8813389B2 (en) 2011-04-06 2014-08-26 Nike, Inc. Adjustable bladder system for an article of footwear
US9060564B2 (en) 2011-04-06 2015-06-23 Nike, Inc. Adjustable multi-bladder system for an article of footwear
US8844165B2 (en) 2011-04-06 2014-09-30 Nike, Inc. Adjustable bladder system with external valve for an article of footwear
KR20130001470A (en) * 2011-06-27 2013-01-04 (주)보스코프레이션 Snowboard shoes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US142A (en) * 1837-03-11 Cooking apparatus
US6186477B1 (en) * 1999-05-05 2001-02-13 Airsep Corporation Gas by-pass valve

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE235310C (en)
US3064678A (en) * 1959-11-02 1962-11-20 Sidney J Shames Washing machine coupling with external bleed
US3200839A (en) * 1962-08-17 1965-08-17 Nuclear Products Company Safety relief valve
GB1602083A (en) * 1978-05-19 1981-11-04 Dunlop Ltd Valves
DE3148111A1 (en) * 1981-12-04 1983-06-09 Josef Lederer Boot, in particular ski boot
DE3310812A1 (en) * 1983-03-24 1984-09-27 Josef Lederer Bladder/pump/valve assembly for shoes, in particular ski boots
DD235310B1 (en) * 1985-03-15 1991-08-22 Sachsenhydraulik Gmbh Gas valve for hydropneumatic accumulator
US5846063A (en) 1987-05-26 1998-12-08 Nikola Lakic Miniature universal pump and valve for inflatable liners
US5364070A (en) * 1993-07-22 1994-11-15 Transamerican Technologies International High pressure micro valve
US5960485A (en) * 1995-01-25 1999-10-05 Mihara; Kenji Bidet
IT238075Y1 (en) * 1997-11-26 2000-09-29 Girardi Giuseppe Safety valve for inflating balloons
GB2345526B (en) * 1999-01-08 2003-07-09 James Jeory Improvements in or relating to connectors and valves
US6189172B1 (en) * 2000-01-14 2001-02-20 Dc Shoes, Inc. Removable liner and inflatable bladder for snowboard boots and method of manufacture
US6409486B1 (en) * 2000-09-12 2002-06-25 Dc Shoes, Inc. Shoe with inflatable bladder and secure deflation valve
US6409487B1 (en) * 2000-09-12 2002-06-25 Dc Shoes, Inc. Shoe with inflatable bladder and secure deflation valve

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US142A (en) * 1837-03-11 Cooking apparatus
US6186477B1 (en) * 1999-05-05 2001-02-13 Airsep Corporation Gas by-pass valve

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7645380B2 (en) 1995-05-05 2010-01-12 Thinkvillage-Kerfoot, Llc Microporous diffusion apparatus
USRE43350E1 (en) 1995-05-05 2012-05-08 Think Village-Kerfoot, Llc Microporous diffusion apparatus
US20080047905A1 (en) * 1999-12-22 2008-02-28 Kerfoot William B Coated Microbubbles for Treating an Aquifer or Soil Formations
US7666313B2 (en) 2000-07-06 2010-02-23 Thinkvillage-Kerfoot, Llc Groundwater and subsurface remediation
US8557110B2 (en) 2000-07-06 2013-10-15 Thinkvillage-Kerfoot, Llc Groundwater and subsurface remediation
US20100116725A1 (en) * 2000-07-06 2010-05-13 Kerfoot William B Groundwater And Subsurface Remediation
US7661657B2 (en) 2003-02-12 2010-02-16 Thinkvillage-Kerfoot, Llc Deep well sparging
US8302939B2 (en) 2003-02-12 2012-11-06 Thinkvillage-Kerfoot, Llc Soil and water remediation system and method
US20100078372A1 (en) * 2003-02-12 2010-04-01 Kerfoot William B Soil And Water Remediation System And Method
US20090039016A1 (en) * 2003-08-27 2009-02-12 Kerfoot William B Environmental Remediation Method
US7645384B2 (en) 2003-08-27 2010-01-12 Thinkvillage-Kerfoot, Llc Environmental remediation method using ozonophilic bacteria within a liquid coating of bubbles
US7648640B2 (en) 2003-12-24 2010-01-19 Thinkvillage-Kerfoot, Llc Directional microporous diffuser and directional sparging
US20080290043A1 (en) * 2003-12-24 2008-11-27 Kerfoot William B Directional Microporous Diffuser and Directional Sparging
US8771507B2 (en) 2003-12-24 2014-07-08 Thinkvillage-Kerfoot, Llc Directional microporous diffuser and directional sparging
US20090272697A1 (en) * 2004-07-20 2009-11-05 Kerfoot William B Superoxidant Poiser For Groundwater And Soil Treatment With In-Situ Oxidation-Reduction And Acidity-Basicity Adjustment
US7666316B2 (en) 2004-07-20 2010-02-23 Thinkvillage-Kerfoot, Llc Permanganate-coated ozone for groundwater and soil treatment with in-situ oxidation
US20070105492A1 (en) * 2005-11-10 2007-05-10 Kerfoot William B Directional spargewell system
US20110044886A1 (en) * 2006-04-11 2011-02-24 Vadim Gorshkov Lithium-based materials and methods of forming the same
US7651611B2 (en) 2006-07-12 2010-01-26 Thinkvillage-Kerfoot, Llc Directional microporous diffuser and directional sparging
US7621696B2 (en) * 2006-07-12 2009-11-24 Thinkvillage-Kerfoot, Llc Directional microporous diffuser and directional sparging
US20080011474A1 (en) * 2006-07-12 2008-01-17 Kerfoot William B Directional microporous diffuser and directional sparging
US20080011688A1 (en) * 2006-07-12 2008-01-17 Kerfoot William B Directional microporous diffuser and directional sparging
US9694401B2 (en) 2013-03-04 2017-07-04 Kerfoot Technologies, Inc. Method and apparatus for treating perfluoroalkyl compounds
US9687045B2 (en) * 2015-02-27 2017-06-27 Reebok International Limited Article of footwear having an upper with inflation system

Also Published As

Publication number Publication date
JP2002136304A (en) 2002-05-14
US6638038B2 (en) 2003-10-28
CN1343470A (en) 2002-04-10
DE60127625D1 (en) 2007-05-16
CA2357144A1 (en) 2002-03-12
AT358425T (en) 2007-04-15
CN1230106C (en) 2005-12-07
EP1186250A2 (en) 2002-03-13
US7001160B2 (en) 2006-02-21
DE60127625T2 (en) 2007-12-27
EP1186250A3 (en) 2004-08-11
US20020164257A1 (en) 2002-11-07
TW557204B (en) 2003-10-11
CA2357144C (en) 2010-04-20
US20040086405A1 (en) 2004-05-06
EP1186250B1 (en) 2007-04-04
US6409487B1 (en) 2002-06-25

Similar Documents

Publication Publication Date Title
US4109661A (en) Footwear having pressure projections
US5195254A (en) Sole
EP0735828B1 (en) Spring athletic shoe
EP0463095B1 (en) Inflatable sole lining with pressure control
US20020095819A1 (en) Ventilated footwear
EP0768047A2 (en) Sports shoe having an elastic insert with concave surface
US5505010A (en) Ventilating shoes
US5416986A (en) Thrust producing shoe sole and heel improved stability
US6076282A (en) Shoe sole with forced air circulation system
US4938775A (en) Artificial leg with bearings for rotational motion
US20050144810A1 (en) Shoe having an inflatable bladder
US6006447A (en) Shoe insole with air circulation system
US5010661A (en) Unidirectional airflow ventilating shoe and a unidirectional airflow ventilating insole for shoes
US5743028A (en) Spring-air shock absorbtion and energy return device for shoes
US20060174518A1 (en) Convertible traction shoes
US5155866A (en) Inflatable game gloves
US7513067B2 (en) Shoe having an inflatable bladder
US3973336A (en) Shoes having vents for ventilating fresh air into the inside of the shoes
ES2245475T3 (en) Self-cleaning outsole, shock resistant shoe ventilated shoe.
US20040199090A1 (en) Pneumatic compression system
US4224746A (en) Shoe ventilating insole
US4525939A (en) Boot safety attachment
EP0437869B1 (en) Self-ventilating shoe
US5139475A (en) Medical appliance for treating venous insufficiency
EP0547724A1 (en) Self-ventilating shoe having an air-controlling device

Legal Events

Date Code Title Description
AS Assignment

Owner name: DC SHOES, INC., CALIFORNIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BAEK, JAI K.;REEL/FRAME:011915/0904

Effective date: 20010329

FPAY Fee payment

Year of fee payment: 4

AS Assignment

Owner name: RHONE GROUP L.L.C., NEW YORK

Free format text: SECURITY AGREEMENT;ASSIGNORS:QUIKSILVER AMERICAS, INC.;QUIKSILVER, INC.;DC SHOES, INC.;AND OTHERS;REEL/FRAME:023065/0035

Effective date: 20090731

Owner name: RHONE GROUP L.L.C.,NEW YORK

Free format text: SECURITY AGREEMENT;ASSIGNORS:QUIKSILVER AMERICAS, INC.;QUIKSILVER, INC.;DC SHOES, INC.;AND OTHERS;REEL/FRAME:023065/0035

Effective date: 20090731

AS Assignment

Owner name: BANK OF AMERICA, N.A., MASSACHUSETTS

Free format text: SECURITY AGREEMENT;ASSIGNORS:QUIKSILVER AMERICAS, INC.;DC SHOES, INC.;HAWK DESIGNS, INC.;AND OTHERS;REEL/FRAME:023085/0071

Effective date: 20090731

Owner name: BANK OF AMERICA, N.A.,MASSACHUSETTS

Free format text: SECURITY AGREEMENT;ASSIGNORS:QUIKSILVER AMERICAS, INC.;DC SHOES, INC.;HAWK DESIGNS, INC.;AND OTHERS;REEL/FRAME:023085/0071

Effective date: 20090731

REMI Maintenance fee reminder mailed
SULP Surcharge for late payment

Year of fee payment: 7

FPAY Fee payment

Year of fee payment: 8

AS Assignment

Owner name: MERVIN MANUFACTURING, INC., WASHINGTON

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:RHONE GROUP, L.L.C.;REEL/FRAME:025204/0001

Effective date: 20101027

Owner name: QUIKSILVER, INC., CALIFORNIA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:RHONE GROUP, L.L.C.;REEL/FRAME:025204/0001

Effective date: 20101027

Owner name: DC SHOES, INC., CALIFORNIA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:RHONE GROUP, L.L.C.;REEL/FRAME:025204/0001

Effective date: 20101027

Owner name: QUIKSILVER AMERICAS, INC., CALIFORNIA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:RHONE GROUP, L.L.C.;REEL/FRAME:025204/0001

Effective date: 20101027

AS Assignment

Owner name: BANK OF AMERICA, N.A., COLLATERAL AGENT, MASSACHUS

Free format text: SECURITY AGREEMENT;ASSIGNORS:QUIKSILVER AMERICAS, INC.;QUIKSILVER, INC.;DC SHOES, INC.;AND OTHERS;REEL/FRAME:025411/0398

Effective date: 20101027

AS Assignment

Owner name: WELLS FARGO BANK, N.A., AS COLLATERAL AGENT, MINNE

Free format text: SECURITY AGREEMENT;ASSIGNORS:DC SHOES, INC.;MERVIN MANUFACTURING, INC.;QUIKSILVER, INC.;AND OTHERS;REEL/FRAME:030812/0641

Effective date: 20130716

Owner name: MERVIN MANUFACTURING, INC., WASHINGTON

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BANK OF AMERICA, N.A., AS COLLATERAL AGENT;REEL/FRAME:030805/0871

Effective date: 20130716

Owner name: QUIKSILVER, INC., CALIFORNIA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BANK OF AMERICA, N.A., AS COLLATERAL AGENT;REEL/FRAME:030805/0871

Effective date: 20130716

Owner name: QS WHOLESALE, INC., CALIFORNIA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BANK OF AMERICA, N.A., AS COLLATERAL AGENT;REEL/FRAME:030805/0871

Effective date: 20130716

Owner name: DC SHOES, INC., CALIFORNIA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BANK OF AMERICA, N.A., AS COLLATERAL AGENT;REEL/FRAME:030805/0871

Effective date: 20130716

FPAY Fee payment

Year of fee payment: 12

AS Assignment

Owner name: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT, MA

Free format text: SECURITY AGREEMENT;ASSIGNORS:QUIKSILVER, INC.;QS WHOLESALE, INC.;DC SHOES, INC.;AND OTHERS;REEL/FRAME:037835/0701

Effective date: 20160211

AS Assignment

Owner name: HAWK DESIGNS, INC., CALIFORNIA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:DELAWARE TRUST COMPANY (SUCCESSOR TO WELLS FARGO BANK, NATIONAL ASSOCIATION);REEL/FRAME:037833/0965

Effective date: 20140224

Owner name: QS WHOLESALE, INC., CALIFORNIA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:DELAWARE TRUST COMPANY (SUCCESSOR TO WELLS FARGO BANK, NATIONAL ASSOCIATION);REEL/FRAME:037833/0965

Effective date: 20140224

Owner name: DC SHOES, INC., CALIFORNIA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:DELAWARE TRUST COMPANY (SUCCESSOR TO WELLS FARGO BANK, NATIONAL ASSOCIATION);REEL/FRAME:037833/0965

Effective date: 20140224

Owner name: QUIKSILVER, INC., CALIFORNIA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:DELAWARE TRUST COMPANY (SUCCESSOR TO WELLS FARGO BANK, NATIONAL ASSOCIATION);REEL/FRAME:037833/0965

Effective date: 20140224

Owner name: QS RETAIL, INC., CALIFORNIA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:DELAWARE TRUST COMPANY (SUCCESSOR TO WELLS FARGO BANK, NATIONAL ASSOCIATION);REEL/FRAME:037833/0965

Effective date: 20140224

AS Assignment

Owner name: OCM FIE, LLC, CALIFORNIA

Free format text: SECURITY INTEREST;ASSIGNORS:QUIKSILVER, INC.;QS WHOLESALE, INC.;DC SHOES, INC.;AND OTHERS;REEL/FRAME:038005/0950

Effective date: 20160211

AS Assignment

Owner name: WILMINGTON TRUST, NATIONAL ASSOCIATION, DELAWARE

Free format text: SECURITY INTEREST;ASSIGNORS:QS WHOLESALE, INC.;DC SHOES, INC.;QS RETAIL, INC.;AND OTHERS;REEL/FRAME:042261/0852

Effective date: 20160314

AS Assignment

Owner name: BOARDRIDERS, INC., CALIFORNIA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:WILMINGTON TRUST, NATIONAL ASSOCIATION;REEL/FRAME:045619/0569

Effective date: 20180423

Owner name: BOARDRIDERS, INC., CALIFORNIA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:OCM FIE LLC;REEL/FRAME:045619/0616

Effective date: 20180423

Owner name: DC SHOES, INC., CALIFORNIA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:OCM FIE LLC;REEL/FRAME:045619/0616

Effective date: 20180423

Owner name: DC SHOES, INC., CALIFORNIA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:WILMINGTON TRUST, NATIONAL ASSOCIATION;REEL/FRAME:045619/0569

Effective date: 20180423

AS Assignment

Owner name: DEUTSCHE BANK AG NEW YORK BRANCH, AS COLLATERAL AG

Free format text: SECURITY INTEREST;ASSIGNOR:DC SHOES, INC.;REEL/FRAME:045868/0509

Effective date: 20180423

AS Assignment

Owner name: BANK OF AMERICA, N.A., AS COLLATERAL AGENT, MASSAC

Free format text: PATENT SECURITY AGREEMENT;ASSIGNORS:BOARDRIDERS IP HOLDINGS, LLC;DC SHOES, INC.;REEL/FRAME:046245/0648

Effective date: 20180423